Overview of Digital Design and Finite Element Analysis in Modern Power Electronic Packaging

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Wide band gap semiconductors require packaging with reduced parasitic inductance and capacitance. To achieve this new packaging solutions are proposed which increases integration. This causes difficulty in measurement of voltages, currents and device temperature, and therefore designers must rely more heavily on simulations to gain insight in the operation of the developed prototypes. Additionally, the use of digital design may reduce the number of physical prototype iterations and thereby reduces development time. Gaining fidelity of 3D multi-physics simulations, reduced order modelling and system simulation aids in the design of working prototypes and pushes performance of new power modules based on wide band gap semiconductor devices. This paper provides an overview and discusses the recent advances in the use of finite element analysis and simulation tools within the topic of power module packaging. The main aspects covered are extraction of electrical parasitics, simulation of transient thermal response and issues related to evaluation of electric fields. An example of a simulation software roadmap is presented which enables accurate electro-thermal simulation of new packaging structures that combine conventional power module technology with integrated printed circuit boards. The future challenges for utilizing the potential of digital design are discussed.
OriginalsprogEngelsk
TidsskriftIEEE Transactions on Power Electronics
Antal sider14
ISSN0885-8993
DOI
StatusE-pub ahead of print - 6 mar. 2020

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